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Seismic performance evaluation of plasterboard partitions via shake table tests

机译:通过振动台试验评估石膏板隔板的抗震性能

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摘要

The damage of nonstructural components represents the largest contribution to the economic loss caused by an earthquake. Since nonstructural components are not amenable to traditional structural analysis, full-scale experimental testing is crucial to understand their behaviour under earthquake. For this reason, shaking table tests are performed to investigate the seismic behaviour of plasterboard partitions. A steel test frame is properly designed in order to simulate the seismic effects at a generic building storey. The tests are performed shaking the table simultaneously in both horizontal directions. To investigate a wide range of interstorey drift demand and seismic damage, the shakes are performed scaling the accelerograms at eleven different intensity levels. The tested plasterboard partitions from Siniat exhibit a good seismic behaviour, both in their own plane and out of plane, showing limited damage up to 1.1 % interstorey drift ratio. The correlation between the dynamic characteristics of the test setup and the recorded damage is evidenced. Finally, an interesting comparison between the experimental results and the analytical model is also performed.
机译:非结构性组件的损坏是地震造成的经济损失的最大贡献。由于非结构性组件不适合传统结构分析,因此全面的实验测试对于了解其在地震下的行为至关重要。因此,要进行振动台测试以研究石膏板隔板的抗震性能。适当设计了钢制测试框架,以模拟一般建筑物中的地震影响。在两个水平方向上同时摇动桌子进行测试。为了调查广泛的层间漂移需求和地震破坏,对振动图进行缩放以在11种不同强度级别上缩放加速度图。经过测试的Siniat石膏板隔板在其自身平面内和平面外均表现出良好的抗震性能,在层间漂移率高达1.1%的情况下显示出有限的破坏。证明了测试装置的动态特性与记录的损坏之间的相关性。最后,还对实验结果和分析模型进行了有趣的比较。

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